Orchard-heater.



R. GAMME a B. N. PERM.

ORGHARD HEATER. APPLICATION FILED JULY so, 1913.

Patented Mar. 24, l914 i \VITNI'SSES:

e ni sTA'rrs PATENT OFFICE.

REGINALD G. SMITH .AND EARL N. PERCY, F OAKLAND, CALIFORNIA.

ORCHARD-HEATER.

noauto.

Specification of Letters Patent., Iatgnted Blur; 24, 19] 4:, Application filed July 30, 1913.

serial No. 781,974.

and is particularly designed for the use of heavy jmineral oil as fuel. y

'lhe inif'entionconsists of the parts and the construction and combination of :parts as hereinafter more fully described and claimed, y haring reference 'to t-he accompanying drawin Whichk A f iiiure 1 is a. vertical section on line fil-2 9' Fig. 2.'. Fig. 2 is a horizontal section on line Y-Y, Fig. 1. f

A is a liquid fuel containing receptacle of suitable size and shape having a tight fitting cover 2, provided with a gas outlet 3. Suitably supported on the cover and' extending upwardly therefrom and surroundingthe gas outlet 3 is la short inner stack 4 which is closed at the top by a cowl plate 5 for the purpose of directing the gases generated within the receptacle radiallyf'outward through a series of small perforations 6 which are vmade around the top of the inner stach. y y 'i 7 is an outer stack spaced from the inner stack and circumferentially supported on the cover extending considerably above the closed or choked end of the inner stack having a series of perforations'S around its base. The regulation of air through the holes S is accomplished by a perforatedsleere dani per 10 is a cover vent or orifice in the cover, primarily designed for ignition purposes and .also serving as an air duct for admittingA air into the receptacle.

11 is a perforated draft deflector and regulator consisting of a vertically disposed plate attached to or carried by the cover and dispoeed adjacent to one side of the receptacle.

l2 is a covered orifice through which air is admitted to the flue 13 formed between the regulator 11 and the adjacent wall of the receptacle. `While the plate 11 may be supported iifany suitable fashion it is preferably provided with a ange 14 Which supports the plate onvthe top of the cover when A the plate is dropped down through a slot 15 in the cover.

In practice the heater is filled with f'ltfpl oil to a pointl about 2 from the iop and just below the top row ot' perforations in the. plate 11 and is ignited through the orifice ll) by means of a littlc gasolenc and a torch.

Air may be admitted 4for colnbust-imltlfpllr poses elt-herthrough orifice l). or vent. i() or both. If admitted through orifice 12 while l the heater is more than half fulhftoo much- `oas will be formed. but after the o1l in the heater` has receded'to less than one-half original depth, it becomes necessary to adv init air thro-ugh the orifice -12 behind the 'baille 11 in order that the air may have a downward direction and pass along the surtace of the oil, thus permitting the heater to be burned out clean. The best operation of the heater is secured by so regulating both orifices 10 and 12 that the combustion is as' smokeless as possible. The combustion wilhin the heater is for gas-makingpurposes only. These products pass` upv the linner chimney 4. against the` closed ,end- 5 of the chimney and out of' the holes in the top in a horizontal direction whore they are met. by the current of' air rising in the passage lo and are ignitedy at thc point of junction of the air and gases through lholes (3 where secondary, combustion takes place'. This secondary combustion may be started either by' tion of the inner chimney t is to create sullicient draft to maintain the gas making process. This being; addedto by the addi- 'tional draft of the outer chimney 7 experience has demonstrated thatsmokeless com-4 bustion cannot be obtained with the outer chimney alone.

The present construction in its various can be used.

details prevents the heater from being unduly sensitive to outside influences, such as Wind, etc., and being easily extinguished.

The advantages of the heater are that it is smolrelessxnd economical with minimum deposits of soot Within the heater. The heater burns out clean excepting for a very small amountozt dry residue. .Any hind of oil All parts of the heater can be stacked for transportation. AThe draft and air connections are adjustable. The gas .-making can be entirelyT regulated by the b shutters of orices l0 and l2 and the combustion of this gas regulated by the air inlet shutter, thus making the heater universally adjustable. By these adjustments the heater may 'be regulated for any kind of oil or any conditions under which it may be operating, and `for any size olhe.

The tundznnental feature of our construction, aside from burning the pot out cleanly, is the small tire in the vicinity of the plate which rises and flows to the stack without transmitting very much heat to the large exposed oil surface. As the oil recedes and becomes heavier through excessive tractionn ing, it reaches a point where it is advisable and necessary to increase the surface exposed to the flame7 and to intensity the heat et the combustion at the bottom ot' the pan, and

`to increase the amount of air admitted. at

that point. This is automatically accomplishedby the uncovering` of the lower end of the plate by the receding oil, permitting the air to pass underneath, burning the pan out clean. lVhen this occurs. in our construction an increased area. aiecfted by the increased combustion at the bottom of the pot.

Having thus described our invention what we claim and desire to secure by Letters latent isV l l. In an orchard heater, the combination ol a liquid :tuel containiinr receptacle having a. close lit-ting slotted cover, said cover having a gas outlet and a combusting stack in conjunction with the outlet, and draft direeling means comprisingI a vertically disposed plate having a horizontal flange along its top edge by which said plate is suspended through the slot inathe cover to one side of the stack andiprojecting into the receptacle, and to a point adjacent to the bottom thereof, said flete forming. with the adjacent wall of` receptacle .a down draft flue, said cover having a regulated air inlet into said flue whereby air is admitted to the recepracle in a down draft and delivered approximate to the surface of the oil as the oil reeedes.

2. In an orchard heater, the combination of a liquid fuel containing receptacle having a close fitting cover, said cover having a gas outlet remote from one side of the receptacle, a' combustion sta-ck in conjunction With said outlet and a vertically disposed plate ad- .jacent to the side of the receptacle remote from the gas outlet, said plate forming a. partition across the receptacle and dividing the space above the fuel into two chambers, means for admitting air 'from the outside to each chamber, said plate being perforated at dilierent levels and said plate tenminating short of the bottom of the receptacle, so that as the oil recedes and becomes heavier and it becomes necessary to intensiythe heat of the combustion at the bottom of the receptacle and on each side of said plate, the air may be 'admitted freely below the lower edge ofthe plate, and means for controlling the amountyof air admitted to the receptacle at either side ot said plate.

In testimony 'whereof We have hereunto i Vllitnesses t JOHN H. HmuuNG.

lV. lV. llnarinr. 

